| hamamelidanthum | (n) genus of fossil plants of the Oligocene having flowers resembling those of the witch hazel; found in Baltic region, Syn. genus Hamamelidanthum |
| hamamelidoxylon | (n) genus of fossil plants having wood identical with or similar to that of the witch hazel, Syn. genus Hamamelidoxylon |
| hamamelis | (n) deciduous shrubs or small trees: witch hazel, Syn. genus Hamamelis |
| hamamelites | (n) genus of fossil plants having leaves similar to those of the witch hazel, Syn. genus Hamamelites |